Index: src/sys/kern/vfs_subr.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/vfs_subr.c,v
retrieving revision 1.639
diff -u -r1.639 vfs_subr.c
--- src/sys/kern/vfs_subr.c	10 Aug 2005 11:46:03 -0000	1.639
+++ src/sys/kern/vfs_subr.c	10 Aug 2005 18:16:36 -0000
@@ -588,10 +588,12 @@
 			continue;
 		}
 		VI_LOCK(vp);
-		vgonel(vp);
+		if (vp->v_usecount == 0)
+			vgonel(vp);
+			done++;
+		}
 		VOP_UNLOCK(vp, 0, td);
 		vdropl(vp);
-		done++;
 		MNT_ILOCK(mp);
 	}
 	MNT_IUNLOCK(mp);